Here we offer windows users
download Windows Sn0wbreeze 2.8 Untethered Jailbreak iOS 4.2.8 Verizon iPhone 4. Mac users can refer to
pwnageTool 4.3.3.1 for verizon iPhone 4 untethered jailbreak.
Sn0wbreeze 2.8 support:
* iPhone 4 (GSM)
* iPhone 4, iOS 4.2.8 (Verizon)
* iPhone 3G
* iPad
* iPod touch 3G
* iPod touch 4G
How to Use Windows Sn0wbreeze 2.8 Download for Untethered Jailbreak iOS 4.2.9 Verizon iPhone 4
Step 1: Download everything you need: Tunes 10.2.2 for Windows,Sn0wbreeze 2.8.1 for Windows,iOS 4.2.9 for Verizon iPhone 4.
Step 2: Launch sn0wbreeze, click the blue arrow.
Step 3: Select the necessary .ipsw, click "Browse".
Step 4: Sn0wbreeze will detect your IPSW file, after finished, click the blue arrow to continue.
Step 5: Select "Expert Mode" mode, then select the create IPSW option to start custom firmware. This process takes a few minutes.
Step 6: When the firmware is built, there will be a big "Done". Click "Ok".
Step 7: Enter DFU mode.
Press Power and Home button for 10 seconds;
Release the power button but keep press the Home button for 10 seconds;
Your iPhone 4 should now enter DFU mode.
Step 8: You will see Running iREB window.
Step 9: Run iTuens, choose your device and press shift button, click Restore, release shift.
Step 10: itunes will promote you to navigate to the iOS 4.2.9 firmware, click open, iTunes will do the rest for you.
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